Vringo, Inc. (AMEX:VRNG) is up 11.88% today at $1.13. VRNG has traded 456 thousand shares so far today, way above its daily average of 48 thousand shares. No news pushing the big volume spike on VRNG today. The company has a market cap of 6.98 million. Check out one of the best swing traders on the street.

Vistaprint (NASDAQ:VPRT) is up 8.28% in midday trading at $37.67. VPRT has traded 1.7 million shares so far today, nearly 3 times its daily average. VPRT shares have jumped more than $8 a share since the middle of the month. Vistaprint announced quarterly results last week and saw earnings beat expectations. The company has a market cap of 1.45 billion.

Heckmann Corporation (NYSE:HEK) is up 2.39% today at $5.14. HEK has traded 3.3 million shares so far today, 30% more than its daily average. HEK share have fallen nearly $2 over the past month and is looking to turn around. The company has a market cap of 605.70 million.

EMCORE Corporation (NASDAQ:EMKR) is down 11.90% today at $1.11. EMKR has traded 1.3 million in midday trading, more than double its daily average. EMCORE announced a 1 for 4 reverse stock split over the weekend that will become effective following the filing of an amendment to EMCORE’s corporate charter. The company has a market cap of 103.47 million. Check out one of the best swing traders on the street.

Sify Technologies Limited (NASDAQ:SIFY) is down 6.39% today at $4.69. SIFY has traded 792 thousand shares so far today and trades 875 thousand shares a day on average. SIFY announced fiscal third quarter results today. Revenue for the quarter was INR 1805 million. The company has a market cap of 395.93 million.

Hovananian Enterprises, Inc. (NYSE:HOV) is down 8.24% in midday trading at $2.45. HOV has traded 2.2 million shares so far today, above its daily average of 1.9 million shares. HOV shares are dipping today after rising more than 100% over the past month. The company has a market cap of 235.99 million.